旋风分离器结构优化实验研究

Experimental study on optimization of structure of cyclone separator

为了在降低旋风分离器压降的同时维持较高的分离效率,设计了一种新型旋风分离器。采用弧形导流板分隔进气的入口结构、渐扩型排气的出口结构、加长型的筒体和锥体的结构,有锥顶过渡段的灰斗结构,并匹配了合理的尺寸。为了验证新型分离器的性能,将新型结构的旋风分离器与基准PV型分离器进行了并联对比实验。以空气为实验介质,实验粉料为滑石粉,在入口气速为14.2~21.2 m/s、入口含尘浓度为0.01 kg/m^3时,同时测量了新型分离器与PV型分离器的效率和压降。对比实验结果表明,相对于基准PV型分离器,新型旋风分离器的平均压降降低了21.91%,且分离效率基本保持不变。

In order to maintain high separation efficiency while reducing the pressure drop of cyclone separator,a new cyclone separator is designed,which has a new inlet structure with arc guide plate to separate the feeding gas,an gradually expanded outlet structure for discharging gas,an extended cylinder with a structure of cone,a new dust hopper structure with cone transition section and well-matched appropriate size.To verify its separation performance,the comparative tests are performed between the new separator and a standard PV cyclone separator.The experiments measuring their efficiencies and pressure drop are conducted by using air as medium and talcum powder as test dust,with an inlet air velocity of 14.2-21.2 m·s^-1 under a fixed dust concentration of 0.01 kg·m^-3.Experimental results show that the pressure drop of new cyclone separator is 21.91%less than that of standard PV cyclone separator,while the efficiencies of both separators are approximately equal.